Tennis: Kiefer wins marathon match

Nicolas Kiefer has advanced to the semi-finals at the Australian Open after a brutal 6-4 0-6 6-4 6-7 (1/7) 8-6 marathon victory over Frenchman Sebastien Grosjean. Nicolas Kiefer has advanced to the semi-finals at the Australian Open after a brutal 6-4 0-6 6-4 6-7 (1/7) 8-6 marathon victory over Frenchman Sebastien Grosjean.